| 嗜线虫致病杆菌与七种杀虫剂混配对小菜蛾毒杀增效作用评价 |
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| 引用本文： | 李立涛,文旭,赵亚楠,孔繁芳,王勤英. 嗜线虫致病杆菌与七种杀虫剂混配对小菜蛾毒杀增效作用评价[J]. 昆虫天敌, 2011, 0(2) |
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| 作者姓名： | 李立涛 文旭 赵亚楠 孔繁芳 王勤英 |
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| 作者单位： | 河北农业大学植物保护学院/河北省农业病虫害生物防治工程技术研究中心; |
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| 基金项目： | 河北省自然科学基金资助项目(C2008000277,C2010000706) |
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| 摘 要： | 采用浸叶法测定了嗜线虫致病杆菌Xenorhabdus nematophila HB310(Xn HB310)与7种常用杀虫剂混配后对小菜蛾3龄幼虫的毒杀增效作用,并对具有增效作用的混配组合进行了最佳配比的筛选和增效作用的评价。结果显示,Xn HB310仅与氯氰菊酯混配表现出明显的增效作用,协同毒力指数(cf)为30.9;当Xn HB310与氯氰菊酯质量比在1006.4∶2.6～816∶4之间时,混配药剂均表现为增效作用;当两种药剂的质量比为952∶3时,增效作用最强,此时的共毒系数最高为335。Xn HB310与乐斯本、吡虫啉或甲氨基阿维菌素苯甲酸盐(甲维盐)混配均表现为相加作用,cf值分别为9.6、-6.9和-18.6,Xn HB310与菜喜、灭幼脲或阿维菌素混配则表现出明显的拮抗作用,cf值分别为-48.4、-24.9和-57.1。
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| 关 键 词： | 嗜线虫致病杆菌 杀虫剂 混配 增效作用 |
The synergism of Xenorhabdus nematophila HB310 mixtures with seven insecticides to Plutella xylostella (L.) |
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| LI Li-Tao,WEN Xu,ZHAO Ya-Nan,KONG Fan-Fang,WANG Qin-Ying. The synergism of Xenorhabdus nematophila HB310 mixtures with seven insecticides to Plutella xylostella (L.)[J]. Natural Enemies of Insects, 2011, 0(2) |
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| Authors: | LI Li-Tao WEN Xu ZHAO Ya-Nan KONG Fan-Fang WANG Qin-Ying |
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| Affiliation: | LI Li-Tao,WEN Xu,ZHAO Ya-Nan,KONG Fan-Fang,WANG Qin-Ying*(College of Plant Protection,Agriculture University of Hebei,Biocontrol Center of Plant Diseases and Plant Pests of Hebei Province,Baoding 071000,China) |
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| Abstract: | In this paper,we determined the synergism of Xenorhabdus nematophila HB310(Xn HB310) mixed respectively with seven different kinds of insecticides on 3rd instar larvae of Plutella xylostella (L.) by method of leaf dipping in laboratory and evaluated the synergistic effect.The results showed that the mixture of Xn HB310 with cypermethrin had remarkable synergistic effect and the cooperative virulence index was 30.9.When the mix-proportion(w/w) of Xn HB310 with cypermethrin ranged from 1006.4:2.6 to 816:4,the... |
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| Keywords: | Xenorhabdus nematophila cypermethrin insecticide mixture synergism |
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